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IBM C4090-453 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Migration and Support | 10% | - Upgrade and compatibility - Support resources and documentation - Data migration strategies |
| Topic 2: Solution Design and Sizing | 26% | - Requirements analysis - Configuration and sizing - Disk Magic and Capacity Magic tools - TDA (Technical Delivery Assessment) process |
| Topic 3: Copy Services and Advanced Functions | 28% | - z/OS specific copy services - FlashCopy - Metro Mirror / Global Mirror - Thin provisioning and QoS - Encryption and security |
| Topic 4: Interoperability and Integration | 14% | - PowerHA and GDPS integration - Open systems and mainframe environments - Tivoli Storage Productivity Center - VMware integration |
| Topic 5: DS8000 Architecture and Components | 22% | - Easy Tier and storage tiering - Hardware architecture and components - Cache and Non-Volatile Storage (NVS) - RAS features and reliability |
IBM System Storage DS8000 Technical Solutions V3 Sample Questions:
1. Which of the following elements provides data integrity in the DS8000?
A) Storage Pool Striping
B) I/O Priority Manager
C) Subsystem Device Driver
D) Non-Volatile Storage
2. What is the standard topology for volume relationships in a DS8000 Global Mirror environment?
A) Volume 1 is in a Global Copy relationship with Volume 2. Volume 2 is in a FlashCopy relationship with Volume 3. Volume 1 is also defined in a Global Mirror session.
B) Volume 1 is in a Global Mirror relationship with Volume 2.
C) Volume 1 is in a Metro Mirror relationship with Volume 2. Volume 2 is in a FlashCopy relationship with Volume 3.
D) Volume 1 is in a Global Copy relationship with Volume 2. Volume 2 is in a FlashCopy relationship with Volume 3. Volume 1 and Volume 2 are also defined in the Global Mirror session.
3. Which of the following statements about the three-site solution Metro z/QS Global Mirror (MzGM) is true?
A) MzGM supports distributed systems data on PB devices
B) MzGM is a multi-target solution where the primary device is replicated both synchronously and asynchronously
C) MzGM can be managed by GDPS and Tivoli Storage Productively Center
D) MzGM does not support z/Linux data on CKD devices
4. A customer is planning to implement a new DS8000. They want to keep management of the DS8000 to a minimum. Which is the preferred method for allocating volumes to assist with this?
A) Rotate Ranks to allow random positioning of ranks across arrays
B) Rotate Arrays to allow optimum placement of arrays in the DSS000
C) Rotate Extents to allow granular placement of extents across multiple ranks
D) Rotate Volumes to allow volumes to fill ranks sequentially
5. A potential DS8870 customer knows that RAID 5 works much faster and is more capacity-efficient than RAID 6, but they fear for double disk failures due to high rebuild times at large disk sizes.
How should the technical specialist address this concern?
A) Discuss the DSS000 Smart Rebuild function with the customer.
B) Suggest configuring large storage pools with multiple RAID 5 arrays.
C) Explain RAID 6 is the only applicable solution.
D) Discuss how additional hot spares can be configured per device adapter pair.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: C | Question # 5 Answer: A |
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